CN104993197A - UHF waveband outer load power-division balance filter - Google Patents
UHF waveband outer load power-division balance filter Download PDFInfo
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- CN104993197A CN104993197A CN201510407791.4A CN201510407791A CN104993197A CN 104993197 A CN104993197 A CN 104993197A CN 201510407791 A CN201510407791 A CN 201510407791A CN 104993197 A CN104993197 A CN 104993197A
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Abstract
The invention relates to an UHF waveband outer load power-division balance filter which comprises a microwave power divider, two outer load directional couplers and four balance filters. The microwave power divider is formed by a microstrip line, a microwave medium paster and an earth plate. Each directional coupler comprises input/output ports for surface mounting and broad edge coupling strip lines of a double helix structure each. Each balance filter comprises six-grade parallel resonance units formed by distributed strip lines and Z-shaped coupling strip lines. The structure above is realized through the LTCC technology. The UHF waveband outer load power-division balance filter has the advantages of being good in phase equalization, good in out-of-band rejection, high in isolation, resistant to high temperature, low in cost, high in quality, high in reliability, good in electrical performance, good in temperature stability and high in rate of finished products and the like, and is widely applied to satellite communication of mobile communication and a Beidou navigation system and the like, and a system and a device, which have high requirements for electrical performance, material consistency, thermo-mechanical performance, temperature stability, manufacturability and anti-interference and the like.
Description
Technical field
The present invention relates to wave filter technology field, the outer load merit balance-dividing filter of especially a kind of UHF waveband.
Background technology
Along with the fast development of hyundai electronics and the communication technology, various electronic equipment all needs multiple electronic device, their function processes microwave signal and changes, and this just needs to use a kind of important microwave passive component-power divider (power splitter).It a kind ofly a road signal energy is divided into two-way or multiple-channel output is equal or the device of unequal energy, the use if reversed, then power combiner several signals being synthesized a road signal, so power splitter can be widely used in military affairs, civil electronic communication system.
The effect of coupler distributes to straight-through end and coupled end by even for inequality signal, can be connected with merit filter-divider, increase frequency usage scope, improve combination property, so in the urgent need to the outer load merit balance-dividing filter of a kind of hyperfrequency, this also has higher requirement to the combination property of filter.The leading indicator of this balance filter has: Out-of-band rejection, delay/frequency characteristic, stopband attenuation, phase delay, quality factor etc.Balance filter allows the signal of certain frequency range to pass through, suppress below or above this frequency range signal, interference and noise and balance each road merit filter-divider performance.And its processing technology has many types, what recent domestic adopted mostly is LTCC Technology.
LTCC is the integrated assembly technology that developed recently gets up, and has become the mainstream technology of passive integration, becomes the developing direction in passive component field.It adopts multi-layer ceramics technology, passive component can be built in medium substrate inside, and also active element can be mounted on substrate surface makes passive/active integrated functional module simultaneously.LTCC is utilized to prepare plate passive integrated device and module has many advantages, ceramic material has excellent high frequency and high quality characteristic, use the high metal material of conductivity as conductor, be conducive to the quality factor of system, also big current and resistant to elevated temperatures requirement can be adapted to, passive block can be imbedded Mulitilayer circuit board by it, be conducive to improving system assembles density, be easy to realize multilayer wiring and encapsulation integral structure, reliability can be improved, high temperature resistant, the adverse circumstances such as high humidity, adopt the production technology of discontinuous, be convenient to carry out quality testing to every one deck wiring and interconnected through hole before substrate burns till, reduce costs.Because LTCC technology has the integrated advantage of 3 D stereo, be widely used for manufacturing various microwave passive components at microwave frequency band, the height realizing passive component is integrated.Based on the stack technology of LTCC technique, can realize three-dimensional integrated, thus size is little, lightweight, performance is excellent, reliability is high, batch production performance consistency is good and the plurality of advantages such as low cost to make various micro microwave filter have, utilize its three-dimensional integrated morphology feature, the outer load merit balance-dividing filter of UHF waveband can be realized.
Summary of the invention
The object of the invention is to realize the outer load merit balance-dividing filter of UHF waveband that a kind of volume realized by strip lines configuration is little, high temperature resistant, low cost, high-quality, good stability, reliability are high, material consistency is good, rate of finished products is high.
Above-mentioned purpose of the present invention is realized by the technical characteristic of independent claims, and dependent claims develops the technical characteristic of independent claims with alternative or favourable mode.
For reaching above-mentioned purpose, the present invention proposes the outer load merit balance-dividing filter of a kind of UHF waveband, comprises a microwave power distributor, two outer load directional couplers and four balance filters.Microwave power distributor comprises 50 ohmage first input end mouths, input inductance, λ/4 transmission line, the 2nd λ/4 transmission line, 100 Ohmic resistances, the first outputting inductance, the second outputting inductance, 50 ohmage first output ports, 50 ohmage second output port and earth terminals.Wherein, input inductance one end is connected with 50 ohmage first input end mouths, the other end is connected with λ/4 transmission line, the 2nd λ/4 transmission line, and the other end of λ/4 transmission line is connected with 100 Ohmic resistance one end, and the 2nd λ/4 transmission line other end is connected with the 100 Ohmic resistance other ends.First outputting inductance one end is connected with λ/4 transmission line, and the other end is connected with 50 ohmage first output ports, and second outputting inductance one end is connected with the 2nd λ/4 transmission line, and the other end is connected with 50 ohmage second output ports.First directional coupler comprises 50 ohmage second input ports, first matched line, 50 ohmage first straight-through ports, second matched line, 50 ohmage first coupling port, 3rd matched line, 50 ohmage first isolated ports, 4th matched line, first double-stranded broadside coupled striplines, second double-stranded broadside coupled striplines and earth terminal, wherein, first double-stranded broadside coupled striplines is vertically positioned at above the second double-stranded broadside coupled striplines, first matched line, second double-stranded broadside coupled striplines and the second matched line are at same plane, first matched line is connected with 50 ohmage second input ports, second matched line is connected with 50 ohmage first straight-through ports, second double-stranded broadside coupled striplines one end is connected with the first matched line, the second double-stranded broadside coupled striplines other end is connected with the second matched line, 3rd matched line, the first double-stranded broadside coupled striplines and the 4th matched line are at same plane, 3rd matched line is connected with 50 ohmage first coupling port, 4th matched line is connected with 50 ohmage first isolated ports, first double-stranded broadside coupled striplines one end is connected with the 3rd matched line, and the first double-stranded broadside coupled striplines other end is connected with the 4th matched line.Second directional coupler comprises 50 ohmages the 3rd input port, 5th matched line, 50 ohmage second straight-through ports, 6th matched line, 50 ohmage second coupling port, 7th matched line, 50 ohmage second isolated ports, 8th matched line, 3rd double-stranded broadside coupled striplines, 4th double-stranded broadside coupled striplines and earth terminal, wherein, 3rd double-stranded broadside coupled striplines is vertically positioned at above the 4th double-stranded broadside coupled striplines, 5th matched line, 4th double-stranded broadside coupled striplines and the 6th matched line are at same plane, 5th matched line is connected with 50 ohmages the 3rd input port, 6th matched line is connected with 50 ohmage second straight-through ports, 4th double-stranded broadside coupled striplines one end is connected with the 5th matched line, the 4th double-stranded broadside coupled striplines other end is connected with the 6th matched line, 7th matched line, the 3rd double-stranded broadside coupled striplines and the 8th matched line are at same plane, 7th matched line is connected with 50 ohmage second coupling port, 8th matched line is connected with 50 ohmage second isolated ports, 3rd double-stranded broadside coupled striplines one end is connected with the 7th matched line, and the 3rd double-stranded broadside coupled striplines other end is connected with the 8th matched line.
First balance filter comprises 50 ohmage four-input terminal mouths, the second input inductance, first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, the 6th grade of parallel resonance unit, the 3rd outputting inductance, the 4th outputting inductance, the first Z-shaped interstage coupling strip line, earth terminal.Parallel resonance unit at different levels forms by three layers of strip line, second layer strip line is vertically positioned at above third layer strip line, ground floor strip line is vertically positioned at above second layer strip line, first order parallel resonance unit is by the first strip line of ground floor, second strip line of the second layer, 3rd strip line of third layer is formed in parallel, second level parallel resonance unit is by the 4th strip line of ground floor, 5th strip line of the second layer, 6th strip line of third layer is formed in parallel, third level parallel resonance unit is by the 7th strip line of ground floor, 8th strip line of the second layer, 9th strip line of third layer is formed in parallel, fourth stage parallel resonance unit is by the tenth strip line of ground floor, 11 strip line of the second layer, 12 strip line of third layer is formed in parallel, level V parallel resonance unit is by the 13 strip line of ground floor, 14 strip line of the second layer, 15 strip line of third layer is formed in parallel, 6th grade of parallel resonance unit is by the 16 strip line of ground floor, 17 strip line of the second layer, 18 strip line of third layer is formed in parallel, wherein, 50 ohmage four-input terminal mouths and second input inductance one end and are connected, second strip line and second of the second layer of first order parallel resonance unit inputs the inductance other end and is connected, 17 strip line of the second layer of the 6th grade of level parallel resonance unit is connected with the 3rd outputting inductance one end, 4th outputting inductance one end is connected with the 18 strip line of the third layer of the 6th grade of parallel resonance unit, first Z-shaped interstage coupling strip line is positioned at the below of parallel resonance unit.Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the first equal ground connection in Z-shaped interstage coupling strip line two ends.
Second balance filter comprises 50 ohmages the 5th input port, the 3rd input inductance, first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, the 6th grade of parallel resonance unit, the 5th outputting inductance, the 6th outputting inductance, the second Z-shaped interstage coupling strip line, earth terminal.Parallel resonance unit at different levels forms by three layers of strip line, second layer strip line is vertically positioned at above third layer strip line, ground floor strip line is vertically positioned at above second layer strip line, first order parallel resonance unit is by the 19 strip line of ground floor, 20 strip line of the second layer, 21 strip line of third layer is formed in parallel, second level parallel resonance unit is by the 22 strip line of ground floor, 23 strip line of the second layer, 24 strip line of third layer is formed in parallel, third level parallel resonance unit is by the 25 strip line of ground floor, 26 strip line of the second layer, 27 strip line of third layer is formed in parallel, fourth stage parallel resonance unit is by the 28 strip line of ground floor, 29 strip line of the second layer, 30 strip line of third layer is formed in parallel, level V parallel resonance unit is by the 31 strip line of ground floor, 32 strip line of the second layer, 33 strip line of third layer is formed in parallel, 6th grade of parallel resonance unit is by the 34 strip line of ground floor, 35 strip line of the second layer, 36 strip line of third layer is formed in parallel, wherein, 50 ohmages the 5th input port and the 3rd inputs inductance one end and is connected, second strip line and the 3rd of the second layer of first order parallel resonance unit inputs the inductance other end and is connected, 35 strip line of the second layer of the 6th grade of level parallel resonance unit is connected with the 6th outputting inductance one end, 5th outputting inductance one end is connected with the 36 strip line of the third layer of the 6th grade of parallel resonance unit, second Z-shaped interstage coupling strip line is positioned at the below of parallel resonance unit.Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the second equal ground connection in Z-shaped interstage coupling strip line two ends.
3rd balance filter comprises 50 ohmages the 6th input port, the 4th input inductance, first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, the 6th grade of parallel resonance unit, the 7th outputting inductance, the 8th outputting inductance, the 3rd Z-shaped interstage coupling strip line, earth terminal.Parallel resonance unit at different levels forms by three layers of strip line, second layer strip line is vertically positioned at above third layer strip line, ground floor strip line is vertically positioned at above second layer strip line, first order parallel resonance unit is by the 37 strip line of ground floor, 38 strip line of the second layer, 39 strip line of third layer is formed in parallel, second level parallel resonance unit is by the 40 strip line of ground floor, 41 strip line of the second layer, 42 strip line of third layer is formed in parallel, third level parallel resonance unit is by the 43 strip line of ground floor, 44 strip line of the second layer, 45 strip line of third layer is formed in parallel, fourth stage parallel resonance unit is by the 46 strip line of ground floor, 47 strip line of the second layer, 48 strip line of third layer is formed in parallel, level V parallel resonance unit is by the 49 strip line of ground floor, 50 strip line of the second layer, 51 strip line of third layer is formed in parallel, 6th grade of parallel resonance unit is by the 52 strip line of ground floor, 53 strip line of the second layer, 54 strip line of third layer is formed in parallel, wherein, 50 ohmages the 6th input port and the 4th inputs inductance one end and is connected, 38 strip line and the 4th of the second layer of first order parallel resonance unit inputs the inductance other end and is connected, 53 strip line of the second layer of the 6th grade of level parallel resonance unit is connected with the 7th outputting inductance one end, 8th outputting inductance one end is connected with the 54 strip line of the third layer of the 6th grade of parallel resonance unit, 3rd Z-shaped interstage coupling strip line is positioned at the below of parallel resonance unit.Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with ground floor earth terminal, the 3rd equal ground connection in Z-shaped interstage coupling strip line two ends.
4th balance filter comprises 50 ohmages the 7th input port, the 5th input inductance, first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, the 6th grade of parallel resonance unit, the 9th outputting inductance, the tenth outputting inductance, the 4th Z-shaped interstage coupling strip line, earth terminal.Parallel resonance unit at different levels forms by three layers of strip line, second layer strip line is vertically positioned at above third layer strip line, ground floor strip line is vertically positioned at above second layer strip line, first order parallel resonance unit is by the 55 strip line of ground floor, 56 strip line of the second layer, 57 strip line of third layer is formed in parallel, second level parallel resonance unit is by the 58 strip line of ground floor, 59 strip line of the second layer, 60 strip line of third layer is formed in parallel, third level parallel resonance unit is by the 61 strip line of ground floor, 62 strip line of the second layer, 63 strip line of third layer is formed in parallel, fourth stage parallel resonance unit is by the 64 strip line of ground floor, 65 strip line of the second layer, 66 strip line of third layer is formed in parallel, level V parallel resonance unit is by the 67 strip line of ground floor, 68 strip line of the second layer, 69 strip line of third layer is formed in parallel, 6th grade of parallel resonance unit is by the 70 strip line of ground floor, 71 strip line of the second layer, 72 strip line of third layer is formed in parallel, wherein, 50 ohmages the 7th input port and the 5th inputs inductance one end and is connected, 56 strip line and the 5th of the second layer of first order parallel resonance unit inputs the inductance other end and is connected, 71 strip line of the second layer of the 6th grade of level parallel resonance unit is connected with the 9th outputting inductance one end, tenth outputting inductance one end is connected with the 72 strip line of the third layer of the 6th grade of parallel resonance unit, 4th Z-shaped interstage coupling strip line is positioned at below parallel resonance unit.Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with ground floor earth terminal, the 4th equal ground connection in Z-shaped interstage coupling strip line two ends.First output port of microwave power distributor is connected with the second input port of the first directional coupler, second output port is connected with the 3rd input port of the second directional coupler, first straight-through port of the first directional coupler is connected with the four-input terminal mouth of the first balance filter, first coupling port of the first directional coupler is connected with the 5th input port of the second balance filter, second straight-through port of the second directional coupler is connected with the 6th input port of the 3rd balance filter, second coupling port of the second directional coupler is connected with the 7th input port of the 4th balance filter.
LTCC is processing technology of the present invention, and phase delay consistency good, each road Insertion Loss consistency that it possesses is good, precision is high, volume is little, cost is low, reliability is high, temperature stability is good, electrical property advantages of higher is not available for other processing technologys.
As long as should be appreciated that aforementioned concepts and all combinations of extra design described in further detail below can be regarded as a part for subject matter of the present disclosure when such design is not conflicting.In addition, all combinations of theme required for protection are all regarded as a part for subject matter of the present disclosure.
The foregoing and other aspect of the present invention's instruction, embodiment and feature can be understood by reference to the accompanying drawings from the following description more all sidedly.Feature and/or the beneficial effect of other additional aspect of the present invention such as illustrative embodiments will be obvious in the following description, or by learning in the practice of the embodiment according to the present invention's instruction.
Accompanying drawing explanation
Accompanying drawing is not intended to draw in proportion.In the accompanying drawings, each identical or approximately uniform part illustrated in each figure can represent with identical label.For clarity, in each figure, not each part is all labeled.Now, the embodiment of various aspects of the present invention also will be described with reference to accompanying drawing by example, wherein:
Fig. 1 (a) is the workflow diagram of the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (b) is power splitter profile and the internal structure schematic diagram of the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (c) is profile and the internal structure schematic diagram of the first directional coupler in the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (d) is profile and the internal structure schematic diagram of the second directional coupler in the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (e) is profile and the internal structure schematic diagram of the first balance filter of the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (f) is profile and the internal structure schematic diagram of the second balance filter of the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (g) is profile and the internal structure schematic diagram of the 3rd balance filter of the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 1 (h) is profile and the internal structure schematic diagram of the 4th balance filter of the outer load merit balance-dividing filter of UHF waveband of certain embodiments of the invention.
Fig. 2 is the amplitude-versus-frequency curve of the outer load merit balance-dividing filter output mouth of a kind of UHF waveband of the present invention.
Fig. 3 is the phase difference characteristics curve of the outer load merit balance-dividing filter output mouth of a kind of UHF waveband of the present invention.
Fig. 4 is outer first balance filter of load merit balance-dividing filter of a kind of UHF waveband of the present invention and the phase difference curve of the second balance filter output port.
Fig. 5 is the phase difference curve that outside a kind of UHF waveband of the present invention, the 3rd balance filter and the 4th of load merit balance-dividing filter balances filter output mouth.
Embodiment
In order to more understand technology contents of the present invention, institute's accompanying drawings is coordinated to be described as follows especially exemplified by specific embodiment.
Each side with reference to the accompanying drawings to describe the present invention in the disclosure, shown in the drawings of the embodiment of many explanations.Embodiment of the present disclosure must not be intended to comprise all aspects of the present invention.Be to be understood that, multiple design presented hereinbefore and embodiment, and those designs described in more detail below and execution mode can in many ways in any one is implemented, this should be design disclosed in this invention and embodiment is not limited to any execution mode.In addition, aspects more disclosed by the invention can be used alone, or otherwisely anyly appropriately combinedly to use with disclosed by the invention.
Composition graphs 1 (a), (b), (c), (d), (e), (f), (g), (h), the outer load merit balance-dividing filter of a kind of UHF waveband of the present invention, this microwave power distributor comprises 50 ohmage first input end mouths (P1), input inductance (Lin), one λ/4 transmission line (S1), 2nd λ/4 transmission line (S2), 100 Ohmic resistances (R), first outputting inductance (Lout1), second outputting inductance (Lout2), 50 ohmage first output ports (P2), 50 ohmage second output port (P3) and earth terminals.
Wherein, input inductance (Lin) one end is connected with 50 ohmage first input end mouths (P1), the other end is connected with λ/4 transmission line (S1), the 2nd λ/4 transmission line (S2), the other end of the one λ/4 transmission line (S1) is connected with 100 Ohmic resistances (R) one end, and the 2nd λ/4 transmission line (S2) other end is connected with 100 Ohmic resistances (R) other end.First outputting inductance (Lout1) one end is connected with λ/4 transmission line (S1), the other end is connected with surface-pasted 50 ohmage first output ports (P2), second outputting inductance (Lout2) one end is connected with the 2nd λ/4 transmission line (S2), and the other end is connected with 50 ohmage second output ports (P3).
First directional coupler (D1) comprises 50 ohmage second input ports (P4), first matched line (L1), 50 ohmage first straight-through ports (P5), second matched line (L2), 50 ohmage first coupling port (P6), 3rd matched line (L3), 50 ohmage first isolated ports (P7), 4th matched line (L4), first double-stranded broadside coupled striplines (U1), second double-stranded broadside coupled striplines (U2) and earth terminal, wherein, first double-stranded broadside coupled striplines (U1) is vertically positioned at the second double-stranded broadside coupled striplines (U2) top, first matched line (L1), second double-stranded broadside coupled striplines (U2) and the second matched line (L2) are at same plane, first matched line (L1) is connected with 50 ohmage second input ports (P4), second matched line (L2) is connected with 50 ohmage first straight-through ports (P5), second double-stranded broadside coupled striplines (U2) one end is connected with the first matched line (L1), second double-stranded broadside coupled striplines (U2) other end is connected with the second matched line (L2), 3rd matched line (L3), the first double-stranded broadside coupled striplines (U1) and the 4th matched line (L4) are at same plane, 3rd matched line (L3) is connected with 50 ohmage first coupling port (P6), 4th matched line (L4) is connected with 50 ohmage first isolated ports (P7), first double-stranded broadside coupled striplines (U1) one end is connected with the 3rd matched line (L3), and first double-stranded broadside coupled striplines (U1) other end is connected with the 4th matched line (L4).
Second directional coupler (D2) comprises 50 ohmages the 3rd input port (P8), 5th matched line (L5), 50 ohmage second straight-through ports (P9), 6th matched line (L6), 50 ohmage second coupling port (P10), 7th matched line (L7), 50 ohmage second isolated ports (P 11), 8th matched line (L8), 3rd double-stranded broadside coupled striplines (U3), 4th double-stranded broadside coupled striplines (U4) and earth terminal, wherein, 3rd double-stranded broadside coupled striplines (U3) is vertically positioned at the 4th double-stranded broadside coupled striplines (U4) top, 5th matched line (L5), 4th double-stranded broadside coupled striplines (U4) and the 6th matched line (L6) are at same plane, 5th matched line (L5) is connected with 50 ohmages the 3rd input port (P8), 6th matched line (L6) is connected with 50 ohmage second straight-through ports (P9), 4th double-stranded broadside coupled striplines (U4) one end is connected with the 5th matched line (L5), 4th double-stranded broadside coupled striplines (U4) other end is connected with the 6th matched line (L6), 7th matched line (L7), the 3rd double-stranded broadside coupled striplines (U3) and the 8th matched line (L8) are at same plane, 7th matched line (L7) is connected with 50 ohmage second coupling port (P10), 8th matched line (L8) is connected with 50 ohmage second isolated ports (P11), 3rd double-stranded broadside coupled striplines (U3) one end is connected with the 7th matched line (L7), and the 3rd double-stranded broadside coupled striplines (U3) other end is connected with the 8th matched line (L8).
First balance filter (F1) comprises 50 ohmage four-input terminals mouth (P12), second input inductance (Lin2), first order parallel resonance unit (L11, L21, L31), second level parallel resonance unit (L12, L22, L32), third level parallel resonance unit (L13, L23, L33), fourth stage parallel resonance unit (L14, L24, L34), level V parallel resonance unit (L15, L25, L35), 6th grade of parallel resonance unit (L16, L26, L36), 3rd outputting inductance (Lout3), 4th outputting inductance (Lout4), first Z-shaped interstage coupling strip line (Z1), earth terminal.
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L11, L21, L31) by first strip line (L11) of ground floor, second strip line (L21) of the second layer, 3rd strip line (L31) of third layer is formed in parallel, second level parallel resonance unit (L12, L22, L32) by the 4th strip line (L12) of ground floor, 5th strip line (L22) of the second layer, 6th strip line (L32) of third layer is formed in parallel, third level parallel resonance unit (L13, L23, L33) by the 7th strip line (L13) of ground floor, 8th strip line (L23) of the second layer, 9th strip line (L33) of third layer is formed in parallel, fourth stage parallel resonance unit (L14, L24, L34) by the tenth strip line (L14) of ground floor, 11 strip line (L24) of the second layer, 12 strip line (L34) of third layer is formed in parallel, level V parallel resonance unit (L15, L25, L35) by the 13 strip line (L15) of ground floor, 14 strip line (L25) of the second layer, 15 strip line (L35) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L16, L26, L36) by the 16 strip line (L16) of ground floor, 17 strip line (L26) of the second layer, 18 strip line (L36) of third layer is formed in parallel.
Wherein, 50 ohmage four-input terminals mouth (P12) and second input inductance (Lin2) one end and are connected, first order parallel resonance unit (L11, L21, second strip line (L21) and second of the second layer L31) inputs inductance (Lin2) other end and is connected, 6th grade of level parallel resonance unit (L16, L26, 17 strip line (L26) of the second layer L36) is connected with the 3rd outputting inductance (Lout3) one end, 4th outputting inductance (Lout4) one end and the 6th grade of parallel resonance unit (L16, L26, 18 strip line (L36) of third layer L36) connects, first Z-shaped interstage coupling strip line (Z1) is positioned at the below of parallel resonance unit.
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the first equal ground connection in Z-shaped interstage coupling strip line (Z1) two ends.
Second balance filter (F2) comprises 50 ohmages the 5th input port (P13), 3rd input inductance (Lin3), first order parallel resonance unit (L41, L51, L61), second level parallel resonance unit (L42, L52, L62), third level parallel resonance unit (L43, L53, L63), fourth stage parallel resonance unit (L44, L54, L64), level V parallel resonance unit (L45, L55, L65), 6th grade of parallel resonance unit (L46, L56, L66), 5th outputting inductance (Lout5), 6th outputting inductance (Lout6), second Z-shaped interstage coupling strip line (Z2), earth terminal.
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L41, L51, L61) by the 19 strip line (L41) of ground floor, 20 strip line (L51) of the second layer, 21 strip line (L61) of third layer is formed in parallel, second level parallel resonance unit (L42, L52, L62) by the 22 strip line (L42) of ground floor, 23 strip line (L52) of the second layer, 24 strip line (L62) of third layer is formed in parallel, third level parallel resonance unit (L43, L53, L63) by the 25 strip line (L43) of ground floor, 26 strip line (L53) of the second layer, 27 strip line (L63) of third layer is formed in parallel, fourth stage parallel resonance unit (L44, L54, L64) by the 28 strip line (L44) of ground floor, 29 strip line (L54) of the second layer, 30 strip line (L64) of third layer is formed in parallel, level V parallel resonance unit (L45, L55, L65) by the 31 strip line (L45) of ground floor, 32 strip line (L55) of the second layer, 33 strip line (L65) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L46, L56, L66) by the 34 strip line (L46) of ground floor, 35 strip line (L56) of the second layer, 36 strip line (L66) of third layer is formed in parallel.
Wherein, 50 ohmages the 5th input port (P13) and the 3rd input inductance (Lin3) one end and are connected, first order parallel resonance unit (L41, L51, 20 strip line (L51) and the 3rd of the second layer L61) inputs inductance (Lin3) other end and is connected, 6th grade of level parallel resonance unit (L46, L56, 35 strip line (L56) of the second layer L66) is connected with the 6th outputting inductance (Lout6) one end, 5th outputting inductance (Lout5) one end and the 6th grade of parallel resonance unit (L46, L56, 36 strip line (L66) of third layer L66) connects, second Z-shaped interstage coupling strip line (Z2) is positioned at the below of parallel resonance unit.
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the second equal ground connection in Z-shaped interstage coupling strip line (Z2) two ends.
3rd balance filter (F3) comprises 50 ohmages the 6th input port (P14), 4th input inductance (Lin4), first order parallel resonance unit (L71, L81, L91), second level parallel resonance unit (L72, L82, L92), third level parallel resonance unit (L73, L83, L93), fourth stage parallel resonance unit (L74, L84, L94), level V parallel resonance unit (L75, L85, L95), 6th grade of parallel resonance unit (L76, L86, L96), 7th outputting inductance (Lout7), 8th outputting inductance (Lout8), 3rd Z-shaped interstage coupling strip line (Z3), earth terminal.
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L71, L81, L91) by the 37 strip line (L71) of ground floor, 38 strip line (L81) of the second layer, 39 strip line (L91) of third layer is formed in parallel, second level parallel resonance unit (L72, L82, L92) by the 40 strip line (L72) of ground floor, 41 strip line (L82) of the second layer, 42 strip line (L92) of third layer is formed in parallel, third level parallel resonance unit (L73, L83, L93) by the 43 strip line (L73) of ground floor, 44 strip line (L83) of the second layer, 45 strip line (L93) of third layer is formed in parallel, fourth stage parallel resonance unit (L74, L84, L94) by the 46 strip line (L74) of ground floor, 47 strip line (L84) of the second layer, 48 strip line (L94) of third layer is formed in parallel, level V parallel resonance unit (L75, L85, L95) by the 49 strip line (L75) of ground floor, 50 strip line (L85) of the second layer, 51 strip line (L95) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L76, L86, L96) by the 52 strip line (L76) of ground floor, 53 strip line (L86) of the second layer, 54 strip line (L96) of third layer is formed in parallel.
Wherein, 50 ohmages the 6th input port (P14) and the 4th input inductance (Lin4) one end and are connected, first order parallel resonance unit (L71, L81, 38 strip line (L81) and the 4th of the second layer L91) inputs inductance (Lin4) other end and is connected, 6th grade of level parallel resonance unit (L76, L86, 53 strip line (L86) of the second layer L96) is connected with the 7th outputting inductance (Lout7) one end, 8th outputting inductance (Lout8) one end and the 6th grade of parallel resonance unit (L76, L86, 54 strip line (L96) of third layer L96) connects, 3rd Z-shaped interstage coupling strip line (Z3) is positioned at the below of parallel resonance unit.
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with ground floor earth terminal, the 3rd equal ground connection in Z-shaped interstage coupling strip line (Z3) two ends.
4th balance filter (F4) comprises 50 ohmages the 7th input port (P15), 5th input inductance (Lin5), first order parallel resonance unit (L101, L111, L121), second level parallel resonance unit (L102, L112, L122), third level parallel resonance unit (L103, L113, L123), fourth stage parallel resonance unit (L104, L114, L124), level V parallel resonance unit (L105, L115, L125), 6th grade of parallel resonance unit (L106, L116, L126), 9th outputting inductance (Lout9), tenth outputting inductance (Lout10), 4th Z-shaped interstage coupling strip line (Z4), earth terminal.
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L101, L111, L121) by the 55 strip line (L101) of ground floor, 56 strip line (L111) of the second layer, 57 strip line (L121) of third layer is formed in parallel, second level parallel resonance unit (L102, L112, L122) by the 58 strip line (L102) of ground floor, 59 strip line (L112) of the second layer, 60 strip line (L122) of third layer is formed in parallel, third level parallel resonance unit (L103, L113, L123) by the 61 strip line (L103) of ground floor, 62 strip line (L113) of the second layer, 63 strip line (L123) of third layer is formed in parallel, fourth stage parallel resonance unit (L104, L114, L124) by the 64 strip line (L104) of ground floor, 65 strip line (L114) of the second layer, 66 strip line (L124) of third layer is formed in parallel, level V parallel resonance unit (L105, L115, L125) by the 67 strip line (L105) of ground floor, 68 strip line (L115) of the second layer, 69 strip line (L125) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L106, L116, L126) by the 70 strip line (L106) of ground floor, 71 strip line (L116) of the second layer, 72 strip line (L126) of third layer is formed in parallel.
Wherein, 50 ohmages the 7th input port (P15) and the 5th input inductance (Lin5) one end and are connected, first order parallel resonance unit (L101, L111, 56 strip line (L111) and the 5th of the second layer L121) inputs inductance (Lin5) other end and is connected, 6th grade of level parallel resonance unit (L106, L116, 71 strip line (L116) of the second layer L126) is connected with the 9th outputting inductance (Lout9) one end, tenth outputting inductance (Lout10) one end and the 6th grade of parallel resonance unit (L106, L116, 72 strip line (L126) of third layer L126) connects, 4th Z-shaped interstage coupling strip line (Z4) is positioned at the below of parallel resonance unit.
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the 4th equal ground connection in Z-shaped interstage coupling strip line (Z4) two ends.
First output port (P2) of microwave power distributor is connected with second input port (P4) of the first directional coupler (D1), second output port (P3) is connected with the 3rd input port (P8) of the second directional coupler (D2), first straight-through port (P5) of the first directional coupler (D1) is connected with the four-input terminal mouth (P12) of the first balance filter (F1), first coupling port (P6) of the first directional coupler (D1) is connected with the 5th input port (P13) of the second balance filter (F2), second straight-through port (P9) of the second directional coupler (D2) is connected with the 6th input port (P14) of the 3rd balance filter (F3), second coupling port (P10) of the second directional coupler (D2) is connected with the 7th input port (P15) of the 4th balance filter (F4).
Composition graphs 1 (a), (b), (c), (d), (e), (f), (g), h (), comprises 50 ohmage input port (P1, P4, P8, P12, P13, P14, P15), input inductance (Lin1, Lin2, Lin3, Lin4, Lin5), λ/4 transmission line (S1, S2), outputting inductance (Lout1, Lout2, Lout3, Lout4, Lout5, Lout6, Lout7, Lout8, Lout9, Lout10), 50 ohmage output port (P2, P3), 50 ohmage straight-through port (P5, P9), 50 ohmage coupling port (P6, P10), 50 ohmage isolated port (P7, P11), matched line (L1, L2, L3, L4, L5, L6, L7, L8), double-stranded broadside coupled striplines (U1, U2, U3, U4), first order parallel resonance unit (L11, L21, L31, L41, L51, L61, L71, L81, L91, L101, L111, L121), second level parallel resonance unit (L12, L22, L32, L42, L52, L62, L72, L82, L92, L102, L112, L122), third level parallel resonance unit (L13, L23, L33, L43, L53, L63, L73, L83, L93, L103, L113, L123), fourth stage parallel resonance unit (L14, L24, L34, L44, L54, L64, L74, L84, L94, L104, L114, L124), level V parallel resonance unit (L15, L25, L35, L45, L55, L65, L75, L85, L95, L105, L115, L125), 6th grade of parallel resonance unit (L16, L26, L36, L46, L56, L66, L76, L86, L96, L106, L116, L126, Z-shaped interstage coupling strip line (Z1, Z2, Z3, Z4) and earth terminal all adopt multilayer LTCC technique to realize.
The outer load merit balance-dividing filter of a kind of UHF waveband, owing to adopting multilayer LTCC technique to realize, so have very high temperature stability, consistency, and has the green tape of some strength.Because structure adopts, 3 D stereo is integrated to be grounded with multilayer folding structure and outer surface metallic shield and to encapsulate, and cost is dropped to minimum.
In the outer load merit balance-dividing filter of a kind of UHF waveband of the present invention, the size of microwave power distributor is only 14mm × 12.9mm × 1.6mm, the size of directional coupler is only 3.2mm × 1.6mm × 1.5mm, the size of four balance filters is 3.2mm × 3.2mm × 1.5mm, as Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, output port insertion loss can reach 10dB, the insertion loss curve of each filter is substantially identical, wherein the phase difference of two output ports of each filter is 176.6, phase difference curve co-insides between each filter, be 176.6, embody the consistency of the outer load merit balance-dividing filter of UHF waveband well.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (2)
1. the outer load merit balance-dividing filter of UHF waveband, is characterized in that, comprises a microwave power distributor and two directional couplers and four balance filters and forms, wherein:
Described microwave power distributor comprises 50 ohmage first input end mouths (P1), input inductance (Lin1), λ/4 transmission line (S1), the 2nd λ/4 transmission line (S2), 100 Ohmic resistances (R), the first outputting inductance (Lout1), the second outputting inductance (Lout2), 50 ohmage first output ports (P2), 50 ohmage second output port (P3) and earth terminals;
Wherein first input inductance (Lin1) one end is connected with surface-pasted 50 ohmage first input end mouths (P1), the other end is connected with λ/4 transmission line (S1), the 2nd λ/4 transmission line (S2), the other end of the one λ/4 transmission line (S1) is connected with 100 Ohmic resistances (R) one end, and the 2nd λ/4 transmission line (S2) other end is connected with 100 Ohmic resistances (R) other end.First outputting inductance (Lout1) one end is connected with λ/4 transmission line (S1), the other end is connected with surface-pasted 50 ohmage first output ports (P2), second outputting inductance (Lout2) one end is connected with the 2nd λ/4 transmission line (S2), and the other end is connected with surface-pasted 50 ohmage second output ports (P3);
The input port that 50 ohmage first input end mouths (P1) are signal, input signal is divided into two-way transmission via the first input inductance (Lin1), one tunnel the one λ/4 transmission line (S1) and 100 Ohmic resistances (R), by the first outputting inductance (Lout1), export at the first output port (P2).Another road the 2nd λ/4 transmission line (S2) and 100 Ohmic resistances (R), by the second outputting inductance (Lout2), export at the second output port (P3);
Described first directional coupler (D1) comprises 50 ohmage second input ports (P4), first matched line (L1), 50 ohmage first straight-through ports (P5), second matched line (L2), 50 ohmage first coupling port (P6), 3rd matched line (L3), 50 ohmage first isolated ports (P7), 4th matched line (L4), first double-stranded broadside coupled striplines (U1), second double-stranded broadside coupled striplines (U2) and earth terminal,
Wherein, first double-stranded broadside coupled striplines (U1) is vertically positioned at the second double-stranded broadside coupled striplines (U2) top, first matched line (L1), second double-stranded broadside coupled striplines (U2) and the second matched line (L2) are at same plane, first matched line (L1) is connected with surface-pasted 50 ohmage second input ports (P4), second matched line (L2) is connected with surface-pasted 50 ohmage first straight-through ports (P5), second double-stranded broadside coupled striplines (U2) left end is connected with the first matched line (L1), second double-stranded broadside coupled striplines (U2) right-hand member is connected with the second matched line (L2), 3rd matched line (L3), first double-stranded broadside coupled striplines (U1) and the 4th matched line (L4) are at same plane, 3rd matched line (L3) is connected with surface-pasted 50 ohmage first coupling port (P6), 4th matched line (L4) is connected with surface-pasted 50 ohmage first isolated ports (P7), first double-stranded broadside coupled striplines (U1) left end is connected with the 3rd matched line (L3), first double-stranded broadside coupled striplines (U1) right-hand member is connected with the 4th matched line (L4),
From the signal of 50 ohmage first output ports (P2), enter from 50 ohmage second input ports (P4), through the first matched line (L1), by the electromagnetic coupled of the first double-stranded broadside coupled striplines (U1), the second double-stranded broadside coupled striplines (U2), be divided into two-way, lead up to the second matched line (L2), export at the first straight-through port (P5), separately lead up to the 3rd matched line (L3), export in the first coupling port (P6);
Described second directional coupler (D2) comprises 50 ohmages the 3rd input port (P8), 5th matched line (L5), 50 ohmage second straight-through ports (P9), 6th matched line (L6), 50 ohmage second coupling port (P10), 7th matched line (L7), 50 ohmage second isolated ports (P 11), 8th matched line (L8), 3rd double-stranded broadside coupled striplines (U3), 4th double-stranded broadside coupled striplines (U4) and earth terminal,
Wherein, 3rd double-stranded broadside coupled striplines (U3) is vertically positioned at the 4th double-stranded broadside coupled striplines (U4) top, 5th matched line (L5), 4th double-stranded broadside coupled striplines (U4) and the 6th matched line (L6) are at same plane, 5th matched line (L5) is connected with surface-pasted 50 ohmages the 3rd input port (P8), 6th matched line (L6) is connected with surface-pasted 50 ohmage second straight-through ports (P9), 4th double-stranded broadside coupled striplines (U4) left end is connected with the 5th matched line (L5), 4th double-stranded broadside coupled striplines (U4) right-hand member is connected with the 6th matched line (L6), 7th matched line (L7), 3rd double-stranded broadside coupled striplines (U3) and the 8th matched line (L8) are at same plane, 7th matched line (L7) is connected with surface-pasted 50 ohmage second coupling port (P10), 8th matched line (L8) is connected with surface-pasted 50 ohmage second isolated ports (P11), 3rd double-stranded broadside coupled striplines (U3) left end is connected with the 7th matched line (L7), 3rd double-stranded broadside coupled striplines (U3) right-hand member is connected with the 8th matched line (L8).First output port (P2) of microwave power distributor is connected with second input port (P4) of the first directional coupler (D1), and the second output port (P3) is connected with the 3rd input port (P8) of the second directional coupler (D2);
From the signal of 50 ohmage second output ports (P3), enter from 50 ohmages the 3rd input port (P8), through the 5th matched line (L5), by the electromagnetic coupled of the 3rd double-stranded broadside coupled striplines (U3), the 4th double-stranded broadside coupled striplines (U4), be divided into two-way, lead up to the 6th matched line (L6), export at the second straight-through port (P9), separately lead up to the 7th matched line (L7), export in the second coupling port (P10);
Described first balance filter (F1) comprises 50 ohmage four-input terminals mouth (P12), second input inductance (Lin2), first order parallel resonance unit (L11, L21, L31), second level parallel resonance unit (L12, L22, L32), third level parallel resonance unit (L13, L23, L33), fourth stage parallel resonance unit (L14, L24, L34), level V parallel resonance unit (L15, L25, L35), 6th grade of parallel resonance unit (L16, L26, L36), 3rd outputting inductance (Lout3), 4th outputting inductance (Lout4), first Z-shaped interstage coupling strip line (Z1), earth terminal,
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L11, L21, L31) by first strip line (L11) of ground floor, second strip line (L21) of the second layer, 3rd strip line (L31) of third layer is formed in parallel, second level parallel resonance unit (L12, L22, L32) by the 4th strip line (L12) of ground floor, 5th strip line (L22) of the second layer, 6th strip line (L32) of third layer is formed in parallel, third level parallel resonance unit (L13, L23, L33) by the 7th strip line (L13) of ground floor, 8th strip line (L23) of the second layer, 9th strip line (L33) of third layer is formed in parallel, fourth stage parallel resonance unit (L14, L24, L34) by the tenth strip line (L14) of ground floor, 11 strip line (L24) of the second layer, 12 strip line (L34) of third layer is formed in parallel, level V parallel resonance unit (L15, L25, L35) by the 13 strip line (L15) of ground floor, 14 strip line (L25) of the second layer, 15 strip line (L35) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L16, L26, L36) by the 16 strip line (L16) of ground floor, 17 strip line (L26) of the second layer, 18 strip line (L36) of third layer is formed in parallel,
Wherein, 50 ohmage four-input terminals mouth (P12) and second input inductance (Lin2) one end and are connected, first order parallel resonance unit (L11, L21, second strip line (L21) and second of the second layer L31) inputs inductance (Lin2) other end and is connected, 6th grade of level parallel resonance unit (L16, L26, 17 strip line (L26) of the second layer L36) is connected with the 3rd outputting inductance (Lout3) one end, 4th outputting inductance (Lout4) one end and the 6th grade of parallel resonance unit (L16, L26, 18 strip line (L36) of third layer L36) connects, first Z-shaped interstage coupling strip line (Z1) is positioned at the below of parallel resonance unit,
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the first equal ground connection in Z-shaped interstage coupling strip line (Z1) two ends;
Signal from the first straight-through port (P5) passes through four-input terminal mouth (P12), input signal is transferred to the second strip line (L21) via the second input inductance (Lin2), through the electromagnetic coupled of first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, the 6th grade of parallel resonance unit, the first Z-shaped interstage coupling strip line (Z1), one tunnel is transferred to the 17 strip line (L26), exports at the 3rd outputting inductance (Lout3).Another road is transferred to the 18 strip line (L36), exports at the 4th outputting inductance (Lout4);
Second balance filter (F2) comprises 50 ohmages the 5th input port (P13), 3rd input inductance (Lin3), first order parallel resonance unit (L41, L51, L61), second level parallel resonance unit (L42, L52, L62), third level parallel resonance unit (L43, L53, L63), fourth stage parallel resonance unit (L44, L54, L64), level V parallel resonance unit (L45, L55, L65), 6th grade of parallel resonance unit (L46, L56, L66), 5th outputting inductance (Lout5), 6th outputting inductance (Lout6), second Z-shaped interstage coupling strip line (Z2), earth terminal,
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L41, L51, L61) by the 19 strip line (L41) of ground floor, 20 strip line (L51) of the second layer, 21 strip line (L61) of third layer is formed in parallel, second level parallel resonance unit (L42, L52, L62) by the 22 strip line (L42) of ground floor, 23 strip line (L52) of the second layer, 24 strip line (L62) of third layer is formed in parallel, third level parallel resonance unit (L43, L53, L63) by the 25 strip line (L43) of ground floor, 26 strip line (L53) of the second layer, 27 strip line (L63) of third layer is formed in parallel, fourth stage parallel resonance unit (L44, L54, L64) by the 28 strip line (L44) of ground floor, 29 strip line (L54) of the second layer, 30 strip line (L64) of third layer is formed in parallel, level V parallel resonance unit (L45, L55, L65) by the 31 strip line (L45) of ground floor, 32 strip line (L55) of the second layer, 33 strip line (L65) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L46, L56, L66) by the 34 strip line (L46) of ground floor, 35 strip line (L56) of the second layer, 36 strip line (L66) of third layer is formed in parallel,
Wherein, 50 ohmages the 5th input port (P13) and the 3rd input inductance (Lin3) one end and are connected, first order parallel resonance unit (L41, L51, 20 strip line (L51) and the 3rd of the second layer L61) inputs inductance (Lin3) other end and is connected, 6th grade of level parallel resonance unit (L46, L56, 35 strip line (L56) of the second layer L66) is connected with the 6th outputting inductance (Lout6) one end, 5th outputting inductance (Lout5) one end and the 6th grade of parallel resonance unit (L46, L56, 36 strip line (L66) of third layer L66) connects, second Z-shaped interstage coupling strip line (Z2) is positioned at the below of parallel resonance unit,
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the second equal ground connection in Z-shaped interstage coupling strip line (Z2) two ends;
Signal from the first coupling port (P6) passes through the 5th input port (P13), input signal is transferred to the 20 strip line (L51) via the 3rd input inductance (Lin3), through first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, 6th grade of parallel resonance unit, the electromagnetic coupled of the second Z-shaped interstage coupling strip line (Z2), one tunnel is transferred to the 35 strip line (L56), export at the 6th outputting inductance (Lout6).Another road is transferred to the 36 strip line (L66), exports at the 5th outputting inductance (Lout5);
3rd balance filter (F3) comprises 50 ohmages the 6th input port (P14), 4th input inductance (Lin4), first order parallel resonance unit (L71, L81, L91), second level parallel resonance unit (L72, L82, L92), third level parallel resonance unit (L73, L83, L93), fourth stage parallel resonance unit (L74, L84, L94), level V parallel resonance unit (L75, L85, L95), 6th grade of parallel resonance unit (L76, L86, L96), 7th outputting inductance (Lout7), 8th outputting inductance (Lout8), 3rd Z-shaped interstage coupling strip line (Z3), earth terminal,
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L71, L81, L91) by the 37 strip line (L71) of ground floor, 38 strip line (L81) of the second layer, 39 strip line (L91) of third layer is formed in parallel, second level parallel resonance unit (L72, L82, L92) by the 40 strip line (L72) of ground floor, 41 strip line (L82) of the second layer, 42 strip line (L92) of third layer is formed in parallel, third level parallel resonance unit (L73, L83, L93) by the 43 strip line (L73) of ground floor, 44 strip line (L83) of the second layer, 45 strip line (L93) of third layer is formed in parallel, fourth stage parallel resonance unit (L74, L84, L94) by the 46 strip line (L74) of ground floor, 47 strip line (L84) of the second layer, 48 strip line (L94) of third layer is formed in parallel, level V parallel resonance unit (L75, L85, L95) by the 49 strip line (L75) of ground floor, 50 strip line (L85) of the second layer, 51 strip line (L95) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L76, L86, L96) by the 52 strip line (L76) of ground floor, 53 strip line (L86) of the second layer, 54 strip line (L96) of third layer is formed in parallel,
Wherein, 50 ohmages the 6th input port (P14) and the 4th input inductance (Lin4) one end and are connected, first order parallel resonance unit (L71, L81, 38 strip line (L81) and the 4th of the second layer L91) inputs inductance (Lin4) other end and is connected, 6th grade of level parallel resonance unit (L76, L86, 53 strip line (L86) of the second layer L96) is connected with the 7th outputting inductance (Lout7) one end, 8th outputting inductance (Lout8) one end and the 6th grade of parallel resonance unit (L76, L86, 54 strip line (L96) of third layer L96) connects, 3rd Z-shaped interstage coupling strip line (Z3) is positioned at the below of parallel resonance unit,
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the 3rd equal ground connection in Z-shaped interstage coupling strip line (Z3) two ends;
Signal from the second straight-through port (P9) passes through the 6th input port (P14), input signal is transferred to the 38 strip line (L81) via the 4th input inductance (Lin4), through first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, 6th grade of parallel resonance unit, the electromagnetic coupled of the 3rd Z-shaped interstage coupling strip line (Z3), one tunnel is transferred to the 53 strip line (L86), export at the 7th outputting inductance (Lout7).Another road is transferred to the 54 strip line (L96), exports at the 8th outputting inductance (Lout8);
4th balance filter (F4) comprises 50 ohmages the 7th input port (P15), 5th input inductance (Lin5), first order parallel resonance unit (L101, L111, L121), second level parallel resonance unit (L102, L112, L122), third level parallel resonance unit (L103, L113, L123), fourth stage parallel resonance unit (L104, L114, L124), level V parallel resonance unit (L105, L115, L125), 6th grade of parallel resonance unit (L106, L116, L126), 9th outputting inductance (Lout9), tenth outputting inductance (Lout10), 4th Z-shaped interstage coupling strip line (Z4), earth terminal,
Parallel resonance unit at different levels forms by three layers of parallel strip line, first order parallel resonance unit (L101, L111, L121) by the 55 strip line (L101) of ground floor, 56 strip line (L111) of the second layer, 57 strip line (L121) of third layer is formed in parallel, second level parallel resonance unit (L102, L112, L122) by the 58 strip line (L102) of ground floor, 59 strip line (L112) of the second layer, 60 strip line (L122) of third layer is formed in parallel, third level parallel resonance unit (L103, L113, L123) by the 61 strip line (L103) of ground floor, 62 strip line (L113) of the second layer, 63 strip line (L123) of third layer is formed in parallel, fourth stage parallel resonance unit (L104, L114, L124) by the 64 strip line (L104) of ground floor, 65 strip line (L114) of the second layer, 66 strip line (L124) of third layer is formed in parallel, level V parallel resonance unit (L105, L115, L125) by the 67 strip line (L105) of ground floor, 68 strip line (L115) of the second layer, 69 strip line (L125) of third layer is formed in parallel, the 6th grade of parallel resonance unit (L106, L116, L126) by the 70 strip line (L106) of ground floor, 71 strip line (L116) of the second layer, 72 strip line (L126) of third layer is formed in parallel,
Wherein, 50 ohmages the 7th input port (P15) and the 5th input inductance (Lin5) one end and are connected, first order parallel resonance unit (L101, L111, 56 strip line (L111) and the 5th of the second layer L121) inputs inductance (Lin5) other end and is connected, 6th grade of level parallel resonance unit (L106, L116, 71 strip line (L116) of the second layer L126) is connected with the 9th outputting inductance (Lout9) one end, tenth outputting inductance (Lout10) one end and the 6th grade of parallel resonance unit (L106, L116, 72 strip line (L126) of third layer L126) connects, 4th Z-shaped interstage coupling strip line (Z4) is positioned at the below of parallel resonance unit,
Every layer of strip line earth terminal is identical, one end ground connection, and the other end is opened a way, and the second layer is contrary with first and third layer of earth terminal, the 4th equal ground connection in Z-shaped interstage coupling strip line (Z4) two ends;
Signal from the second coupling port (P10) passes through the 7th input port (P15), input signal is transferred to the 56 strip line (L111) via the 5th input inductance (Lin5), through first order parallel resonance unit, second level parallel resonance unit, third level parallel resonance unit, fourth stage parallel resonance unit, level V parallel resonance unit, 6th grade of parallel resonance unit, the electromagnetic coupled of the 4th Z-shaped interstage coupling strip line (Z4), one tunnel is transferred to the 71 strip line (L116), export at the 9th outputting inductance (Lout9).Another road is transferred to the 72 strip line (L126), exports at the tenth outputting inductance (Lout10);
First output port (P2) of microwave power distributor is connected with second input port (P4) of the first directional coupler (D1), second output port (P3) is connected with the 3rd input port (P8) of the second directional coupler (D2), first straight-through port (P5) of the first directional coupler (D1) is connected with the four-input terminal mouth (P12) of the first balance filter (F1), first coupling port (P6) of the first directional coupler (D1) is connected with the 5th input port (P13) of the second balance filter (F2), second straight-through port (P9) of the second directional coupler (D2) is connected with the 6th input port (P14) of the 3rd balance filter (F3), second coupling port (P10) of the second directional coupler (D2) is connected with the 7th input port (P15) of the 4th balance filter (F4).
2. the outer load merit balance-dividing filter of UHF waveband according to claim 1, is characterized in that, described each 50 ohmage input port (P1, P4, P8, P12, P13, P14, P15), input inductance (Lin1, Lin2, Lin3, Lin4, Lin5), λ/4 transmission line (S1, S2), outputting inductance (Lout1, Lout2, Lout3, Lout4, Lout5, Lout6, Lout7, Lout8, Lout9, Lout10), 50 ohmage output port (P2, P3), 50 ohmage straight-through port (P5, P9), 50 ohmage coupling port (P6, P10), 50 ohmage isolated port (P7, P11), matched line (L1, L2, L3, L4, L5, L6, L7, L8), double-stranded broadside coupled striplines (U1, U2, U3, U4), first order parallel resonance unit (L11, L21, L31, L41, L51, L61, L71, L81, L91, L101, L111, L121), second level parallel resonance unit (L12, L22, L32, L42, L52, L62, L72, L82, L92, L102, L112, L122), third level parallel resonance unit (L13, L23, L33, L43, L53, L63, L73, L83, L93, L103, L113, L123), fourth stage parallel resonance unit (L14, L24, L34, L44, L54, L64, L74, L84, L94, L104, L114, L124), level V parallel resonance unit (L15, L25, L35, L45, L55, L65, L75, L85, L95, L105, L115, L125), 6th grade of parallel resonance unit (L16, L26, L36, L46, L56, L66, L76, L86, L96, L106, L116, L126, Z-shaped interstage coupling strip line (Z1, Z2, Z3, Z4) and earth terminal all adopt multilayer LTCC technique to realize.
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Application publication date: 20151021 |